smart junction box monitoring the load cells integrity2 jbox-lci smart junction box monitoring the...
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— ABB MEASUREMENT & ANALYTICS | DATA SHEET
JBox-LCI Smart junction box monitoring the load cells integrity
2 JBOX-LCI SMART JUNCTION BOX MONITORING THE LOAD CELLS INTEGRITY | DS/JBOX-LCI-EN REV. A
— Measurement made easy Smart junction box designed for parallel connecting of 2 to 4 load cells to a measurement electronics and ensuring the monitoring of their proper function.
— Control of • Load cell out of present balance range • Load cell out of present operating range • Low / high excitation • Open circuit to any load cell on each connection • Short circuit on any load cell connection • Internal load cell fault (bridge imbalance)
— Ensure the positive safety for load limitation systems based on multiple load cells parallel connected (hoisting devices).
— Options • ABS housing available with DIN rail mounting accessories • PCB available without ABS housing
JBOX-LCI SMART JUNCTION BOX MONITORING THE LOAD CELLS INTEGRITY | DS/JBOX-LCI-EN REV. A 3
— Applications
The JBox-LCI is perfectly designed to the following applications:
• Load limitation for hoisting equipment based on several load cells.
• Industrial weighing with improved reliability.
— Functions
• Easy calibration by keys and 4 digits display. • Indication of the signal (mV) of each sensor, the average
signal an error message (number of sensor and type of error).
• Relay normally energized. • Protection of parameters by secret code.
Change from two to one column
—
Specification
JBox-LCI
Type Smart junction box
Input range 1 to 5 mV/V
Sensor excitation 10 VCD ± 20 %*
Display 4 digits
Linearity error <±0.0015 % F.S.
Temperature coefficient of the sensitivity < ± 0.005 % F.S./10 °C
Temperature coefficient of zero signal < ± 0.005 % F.S./10 °C
IP rating IP65
Qty of relay 1
Relay type SPCO relay
Temperature data
Service temperature range 40 to 85 °C ( 40 to 185 °F)
Storage temperature range 40 to 95 °C ( 40 to 203 °F)
Electrical data
Power supply 8.2 to 10 VDC
Contact rating 0.5 A / 50 VDC max.
* Provided by measurement electronics / 52 mA (except the consumption of the sensors).
Table 1: (F.S.: full scale)
4 JBOX-LCI SMART JUNCTION BOX MONITORING THE LOAD CELLS INTEGRITY | DS/JBOX-LCI-EN REV. A
— Dimensions
Smart junction box model JBox-LCI
All specified dimensions are in mm (in.)
Settings
mV
Relay
LOAD CELLS
INSTRUMENT
Programm
Alarm
LED
200 (7.87)
188 (7.40)
120
(4.72)
89
(3.5)
Ø 4.8 (0.18)
Fixing
centre
188x89
(7.40x3.50)
For M4
screws
Alarm
Relay
Load
cell
output
Load cell input
Ø 4.5 > 7 (0.17 > 0.27)
±46
(1.81)
75 (2.95)
+EX+S SCR -S -EX +EX+S SCR -S -EX
+EX+S SCR -S -EX+EX+S SCR -S -EX
+E
X+
SS
CR
-S-E
X
1 2 3 4
R00106
Figure 1: Dimensions
Terminals
1 2 3 4 INSTRUMENT
Default
position
Positive
security
Load cells
Relay
+Ex +Ex +Ex +Ex +Ex+S +S +S +S +SSCR SCR SCR SCR SCR-S -S -S -S -S-EX -EX -EX -EX -EX
Wiring:
+Exc. (Brown)
-Exc. (Yellow)
+Sig. (Green)
-Sig. (White)
SCR (Screen cable)
1
R00108
1 2-part plug-in connectors wire max. 2,5mm2
Figure 2: Other view
JBOX-LCI SMART JUNCTION BOX MONITORING THE LOAD CELLS INTEGRITY | DS/JBOX-LCI-EN REV. A 5
— Notes
6 JBOX-LCI SMART JUNCTION BOX MONITORING THE LOAD CELLS INTEGRITY | DS/JBOX-LCI-EN REV. A
— Notes
JBOX-LCI SMART JUNCTION BOX MONITORING THE LOAD CELLS INTEGRITY | DS/JBOX-LCI-EN REV. A 7
— ABB Automation GmbH Measurement & Analytics Force Measurement Oberhausener Str. 33 40472 Ratingen Germany Tel: +49 2102 12-2520 Fax: +49 2102 12-1414 Mail: [email protected] abb.com/measurement
DS/
JBox
-LC
I-EN
Rev
. A
05.
2018
— We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document. We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its contents – in whole or in parts – is forbidden without prior written consent of ABB. © Copyright 2018 ABB. All rights reserved. 3BDE701056